metal nanoparticle Metal Nanoparticles 30 chemistry 26 Gold 22 gold 22 Metal nanoparticles 18 Nanoparticles 14 Nanotechnology 14 article 14 Gold Nanoparticles 12 nanotechnology 12 Fluorescence 10 procedures 10 DNA 8 Molecules 8 gold nanoparticle 8 Article 6 Fiber optic sensors 6 Fluorescent Dyes 6 Plasmons 6 Single-molecule 6 Spectrometry, Fluorescence 6 controlled study 6 electrode 6 fluorescent dye 6 gold nanoparticles 6 metabolism 6 methodology 6 nanoparticle 6 particle size 6